Roll-balancing mechanism



3 Sheets-Sheet 1 Filed Jan. 5,

L LEE ROLL BALANCING MECHANISM Apr. 17, 1923.

INVENTOR.

L. LEE

.Apx'. 17, 1923 1,452,347

ROLL BALANCING MECHANISM FiledJan. 1921 3 Sheets-Sheet 5 p I il-IN JZ w,gyW,@

I Patented Apr. 17, 1923.

LE'IF LEE, or youaesaown, 0mg;

' ROLL-BALANCING,ME CHANISM. i

' Application ifi led January}, @1521. {am No. 434,620.

To all whom it may concern:

Be it known that I, LEIF LEE, a citizen of the United States, residingat Youngstown, in the county of Mahoning and State of Ohio, haveinvented a new and useful Improvement in Roll-Balancing Mechanism, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspecification, in wliich I I igure 1 is a view, partly in verticalsectionand partly in end elevation, of arolling mill embodying myinvention;

Figures 2 and 3 are sectional views, taken respectively, on lines II,IIand III-III of Figure 1;

Figure 1 is a ing head; and

Figure 5 is a perspective View of the contact end portion of thebalancing lever.

My invention has relation to-roll balanc-.

ing mechanism, and is designed to provide a mechanism of this characterin which the 'balancing action is transmitted to the supportingmechanism for the roll bearings through a surfacecontact device, insteadof by a p111 connected tofore been used.

By eliminatingthe pin connecting joint as a means of connection betweenthe supporting and the balancing devices, I provide a construction inwhich the housings can be readily moved to accommodate varijoint such ashas hereous lengths of rolls without changing the position or decreasingthe efiiciency of the balancing mechanism. My improved construction alsopermits the roll housings to be entirely removed without many way (118-turbing the balancing mechanism. This work can be done without theexpenditure of time and labor for making and breaking the connectionsbetween the balancing mechanism and the metal housings.

Referring to the accompanying drawings, in which I have shown a preferred embodiment of my invention, the numeral 2 designates the base orfoundation of a two-high rolling mill, 3 the roll.housings, 4 the toproll, 5 one of the top roll bearings, and 6 the bottom roll. The bearing5 for the top roll is vertically adjustable in the housings in any usualor suitable manner, and is supported by means of the vertical struts 7which extend vertically upward through the roll housings. At their lowerends these struts are supperspective View of the slidported on anequalizing lever which pivoted at 9in a slide block 10, which isvertically movable in suitable guides 11 bolted or otherwise rigidlysecured to the bottom of a roll housing. The lower edge of the slidinghead is provided with a concave seat 12 on which the contact bar 13 ofthe balance mechanism acts. This balance lever consists of a multiplyinglever 14 which is pivoted at 15 in a suitable support 16secured in thebed or foundation of the mill independent of the roll housing. Thecontact bar 13 is mounted at theinner end 1 of this lever and engageswith the concave seat of the supporting mechanism. The

longer arm of the lever has an adjustable counterweight 17.

The advantages of my invention result from the provision of contactdevices for transmitting power and motion from the balancing mechanismto the supporting devices. The contact bar 13 may be provided with moreor less of a knife edge, thus eliminating all lost motion dueto wear,and permitting the rolls to be changed and the housings to be adjustedwith a minimum of time and labor. 7 The construction also provides ahigh degree of accessibility to the difl'erent parts, and also permitstheir ready renewal and replacement. a

I do not wish to limit myself to the particular construction,arrangement and combination of parts which I have herein shown anddescribed, as it will be obvious that Various changes can be made fromthe details thereof without departing from the spirit and scope of myinvention as set forth in the appended claims.

I claim:

, 1. Roll balancing mechanism comprising balancing mechanism having acontact ensubstantially gagement with said cros'shead, as described.

2. Roll balancing mechanism consisting in the combination with averitcally movable roll bearing, supporting struts therefor, and

an equalizing lever upon which thesupports are mounted, of a crossheadto which the equalizing lever is pivoted, and a balancing device havinga contact engagementwith said crosshead, substantially as described.

3(Roll balancing mechanism comprising a vertically movable crosshead, anequa1iz ing lever pivotedthereto, roll supporting devices carried by theequalizing lever, and a counterweighted balancing. lever having a Icontact engagement With the orosshead, substantially as described. a 4.Roll balancing mechanism comprising a vertically movable crosshead,guides in Which said crosshead is mounted, an equalizing lever pivotedto" the crosshead, roll bearing supports carried by theequalizing lever,and an adjustably Weighted balancing lever, said balancing lever havinga contact bar provided with a bearing on the crosshead, substantially asdescribed.

In testimony whereof, I have hereunto set my hand.

LEIF LEE.

